baber/WOPTO huggingface dataset:
Patent GB-942784-A (GB)
Title: Improvements in or relating to frequency-diversity radar
IPC: G01S7/36
Filed: 1962-08-30
Abstract: 942,784. Pulse radar; valve gating circuits. ALBISWERK ZURICH A.G. Aug. 30, 1962 [Sept. 6, 1961], No. 33270/62. Headings H3P and H4D. In an anti-jamming radar system employing two simultaneous different radio frequencies, each amplitude-modulated by the same pulse train, the two receiving channel video-frequency outputs are fed to an " AND " circuit such that utilization means is fed only with the smaller-amplitude signal. The latter signal is also used for automatic-gain control. In the circuit of Fig. 2, the output echo pulses A, B from the respective receiving channels are fed to cathode followers H 1 , H 2  having cathode resistors R 2 , R 4  each of which is much lower in resistance than resistor R 3 . The tappings on resistors R 2 , R 4  are adjusted so that in the absence of input signals the cathodes of diodes G 2 , G 3  are at the same potential. It is explained that with one input only there is no output at terminal C and that with two inputs the output pulse amplitude corresponds to that of the smaller input pulse. Diodes G 1 , G 4  block negative-going pulses.
Patent GB-298407-A (GB)
Title: Method and apparatus for drawing tubes
IPC: B21C1/30
Filed: 1927-12-09
Abstract: 298,407. Fulton, W. M. Dec. 9, 1927. Drawing; mandrels. - Tubes are drawn between a reciprocating mandrel and die, the mandrel moving with the tube while the latter is being drawn through the die, and the drawing action being intermittent so that the mandrel acts on successive portions of the tube. Alternatively, the die may reciprocate, and the mandrel remain stationary. The mandrel 46 is mounted on a bar 43 pivoted in a crank-operated crosshead 36 which carries a notched bar 78 whereby intermittent longitudinal movement is transmitted through a pawl 85 to the drawing head 69. A further pawl 95 is mounted on the draw-head to coact with teeth 94 to prevent retrograde movement of the draw-head during the idle stroke of the crosshead, and a hand-lever 91 is provided for disengaging both pawls 95, 85 so that the draw-head may be moved to its initial position. The die 53 is secured by clamps in a holder 49 mounted on a die block 48, the latter being linked at 56 to a hand crank 61, whereby the die-block may be moved clear of the end of the mandrel. A spring 45 lifts the mandrel bar, when clear of the die block, in order that it may receive a tubular blank whose end has been previously reduced, as by swaging, to pass through the die. The mandrel is then lowered, the hand crank 61 actuated to carry the die block over the tube end, the hand crank being then locked in this position throughout the drawing operation. The drawhead is then moved up to the tube, a flexiblymounted plug 76 being inserted in the tube end to withstand the collapsing pressure exerted by the screw actuated pivoted gripping jaw 73. The pawls 85, 95 are then recorded operative and the machine started. In a modification, particularly for drawing tubes of small bore, the mandrel is carried by a tension bar 101, Fig. 10, secured to an eccentric pin 104 in a bracket secured to the notched bar 78, the eccentric being adapted to be operated by hand to engage the hook 102 with the mandrel and to ensure the bar 101 being maintained in a state of tension. This machine is stated to be able to produce tubes having a wall thickness of 0.005 inch or more.
Patent GB-834351-A (GB)
Title: Improvements in or relating to abrasives
Inventor: GREGOR JOHN ROBERT
IPC: B24D3/34
Filed: 1957-10-25
Abstract: An abrasive article comprises abrasive grains and a bonding material comprising a thermoset binder resin and at least one filler in the form of a mixture of at least one alkali metal salt of sulphuric, hydrochloric or hydrobromic acid with at least one metallic sulphide in the form of a sulphide of antimony, iron, lead or zinc, said filler being present in a proportion of at least 2%, based on the volume of said bonding material.  The specified binders are "B"-stage phenol-aldehyde and cresol-aldehyde resins.  Specified abrasives are silicon carbide, boron carbide, tantalum carbide, tungsten carbide, alumina, diamond grains, glass, quatrz and garnet.  The compositions may also contain cross-linking and curing agents, e.g. paraformaldehyde and hexamethylene tetramine, modifying resins, e.g. epoxy resins, vinyl chloride and vinyl butyral resins, styrene-acrylonitrile resins and butadiene-acrylonitrile rubbers, solvents or plasticizers, e.g. furfuraldehyde, propylene sulphite, furfuryl alcohol and cresol and fillers, e.g. cryolite, felspar and iron oxide.  In the examples, abrasive wheels are made by cold pressing a mixture of a powdered "B" stage phenolformaldehyde resin, lime, an abrasive, furfuraldehyde, tar oil and (I) and (II) mixtures of potassium sulphate and zinc sulphide, (III) mixtures of (a) potassium bromide and zinc sulphide, (b) potassium chloride and zinc sulphide, (c) potassium sulphate and antimony sulphide, (d) potassium sulphate and lead sulphide, and (e) potassium sulphate and ferrous sulphide.  U.S.A. Specification 2,860,961 is referred to.
Patent GB-1441893-A (GB)
Title: Sparking plug connector of angled construction
IPC: H01T13/05
Filed: 1974-08-01
Abstract: 1441893 Two-part couplings KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 1 Aug 1974 [8 Nov 1973] 33996/74 Heading H2E A sparking plug connector comprises a thermosetting synthetic resin body 1, metal screening 2, 3, 4 and a suppressor resistor 7 connected between a lead 8 and a contact 6, the contact, resistor and lead being located by centering elements 5, 9 and the connector being filled where shown by injection moulding a rubber or elastomeric composition 10 through channels (not shown) provided for this purpose, identification characters visible from A being provided and a lip 17 to exclude moisture from the region 15 receiving a sparking plug 16 being moulded on to the connector during the injection process.
Patent GB-1013265-A (GB)
Title: Thermoelectric device assembly
IPC: H01L35/32
Filed: 1962-09-06
Abstract: 1,013,265. Thermo-electric assembly. WESTINGHOUSE ELECTRIC CORPORATION. Sept. 6, 1962 [Nov. 8, 1961], No. 34223/62. Heading H1K. A thermo-electric assembly is formed from an insulating frame member having several spaced open-ended compartments, each containing a single thermoelectric pellet and conductive connections provided by plasma jetspraying, bonded to the ends of each pellet. In the embodiment shown in the Figure, semiconductor pellets 8 of alternate P and N-type material of e.g. bismuth tellurium selenide, lead telluride, bismuth antimony telluride or zinc antimonido, are placed in open-ended compartments 6 in a frame 4 of insulating material such as mica, ceramics, glass, fibre or silicon resin. The separating walls of the compartments between each pair of thermoelectrically opposite pellets are cut back or of reduced height adjacent the opposite surfaces 9 of the pellets. Conductive material 10 is then applied by plasma jet-spraying to provide thermal and electrical connection between adjacent pellets. External leads 12 for the assembly are soldered or brazed to two separate conductive layers 10. The ends of the insulating member not coated with conductive material may be provided with fins for cooling or liquid may be circulated around these ends of the assembly. The assembly may be of polygonal or circular section.
Patent GB-633988-A (GB)
Title: Improvements in coffee percolators
IPC: A47J31/057
Filed: 1947-12-29
Abstract: 633,988. Coffee infusing machines. ROBBIATI, G. Dec. 29, 1947, No. 34354. Convention date, Sept. 18, 1946. [Class 129] A coffee infusing machine comprises a kettle having a hollow curved neck 4 containing a pipe 8 which delivers hot water to a chamber sealed off from the waterfilled part of the neck and containing a water distributer 7. A filter 15, which contains the coffee grounds, is held in place below the distributer by a removable cup 13 engaged on the chamber. The orifice 12 in the cup 13 is located centrally over the coffee pot when the latter is placed on the seat 2 on the kettle. The lower part of the chamber is formed integrally with the neck and the upper part 9 is bolted thereto, the water distributer being clamped between the two parts. The cup is held in place by means of a bayonet joint. A spring-loaded safety valve 23 is provided on the kettle. In a modification, the upper end of the pipe 8 is screwed into a flanged cap which is clamped to the. lower part of the chamber by the part 9. The safety valve is incorporated in the plug for the filling orifice.
Patent GB-1156391-A (GB)
Title: Process and Installation for Selective Continuous Lead Refining
IPC: C22B13/06
Filed: 1966-08-01
Abstract: 1,156,391. Purifying lead. STOLBERGER ZINK A. G. FœR BERGBAU und HœTTENBETRIEB. Aug. 1, 1966 [July 30, 1965], No.34396/66. Heading C7D. A process for refining lead containing Zn, As, Sn and Sb comprises treating it in the molten state with caustic alkali (preferably NaOH) in three stages. The first stage is carried out in the absence of oxygen to eliminate Zn and As, the second and third stages may be carried out in the presence of oxygen the second at a comparatively low temperature e.g. 420‹C. to eliminate Sn and the third at a higher one e.g. 500‹C. to eliminate Sb. The oxygen concentration in the third stage may be higher than that in the second. The slags in the various stages may be regenerated and recycled. The process is carried out in three reaction kettles arranged in series and having stirrers, each kettle having a syphon outlet at its lower part so that lead introduced into the first kettle passes successively through the kettles the first of which, at least, is closed.
Patent GB-1261294-A (GB)
Title: Fishing float assembly
Inventor: MODEME ROBERT L
IPC: A01K93/00
Filed: 1970-07-15
Abstract: 1,261,294. Fishing float. M.E.P.P.S., MANUFACTURE D'ENGINS DE PRECISION POUR PECHES SPORTIVES. 15 July, 1970 [1 Aug., 1969; 13 Nov., 1969], No. 34404/70. Heading A1A. A fishing float comprises two elements, a float 2 and a sinker portion 3, slidably mounted on each other. The part 3 comprises a rod 6 attached to a cradle 10 integral with a weight portion 12. A line 9a is attached at 17 to the portion 3 and is wound around a neck part (14), Fig. 3 (not shown) while its end which is connected to a hook and bait 11 is housed in the cradle 10. The float 2 in its normal position rests as in Fig. 1 (not shown), covering the cradle 10. When the device is cast, the float 2 remains at water level due to its buoyancy while the part 3 slides downwardly thereby uncovering the cradle 10 whose contents 11 fall out under gravity and the line unwinds off the neck portion, as shown in Fig. 3 (not shown). In a second embodiment, Fig. 5, a tip 30 is attached to a rod 24 connected to the cradle 25, the tip having a groove 38 on a piece 35 around which the line 33 is wound and then passes through holes 41, 43 and is finally wound around a neck 28, its end being housed in the cradle 25. The piece 35 is joined to the tip 30 by a resilient lug 37, Fig. 6 (not shown) and when the device is cast the piece 35 is held in a recess 34, Fig. 7 (not shown), the line being held taut on the groove 38 by the weight of the sinker 26. On recovery of the device the line 33 is wound in on the fishing rod until the tip 30 bears against the end ring of the rod thus causing the piece 35 to become disengaged from the recess 34, and the line then winds off the groove 38. In a further embodiment, the float element is mounted inside the sinker element, Figs. 11-14 (not shown).
Patent GB-964995-A (GB)
Title: Improvements in or relating to chairs and chair fittings
IPC: A47C3/026
Filed: 1961-09-26
Abstract: 964,995. Seats. SENG CO. Sept 26, 1961 [Feb. 20, 1961], No. 34421/61. Heading A4J. A seat 13 is rotatably supported on a spindle 15 the height of which can be adjusted with respect to a base 11. A back rest 14 can tilt against the resistance of a compression spring 32 and is carried by a pair of arms 23 pivoted about a horizontal pin 24. The upper end of the spring 32 is seated in a retainer 34 eccentrically surrounding the spring so that as the arms 23 are tilted downwardly the retainer moves telescopically and transversely with respect to the spindle until it abuts the spindle and prevents further downward movement of retainer 34, arms 23 and back rest 14. The upper position of the back rest is determined by engagement of a web 29 connecting the arms 23 with a resilient bumper 30. Adjustment of a bushing 33 which seats the lower end of the spring varies the resilient force of the spring 32.
Patent GB-176488-A (GB)
Title: Improvements in dynamo electric machinery
IPC: H02K1/26
Filed: 1920-12-06
Abstract: 176,488. Joel, H. r., and Joel, H. F. Dec. 6, 1920. Cores; coils.-The slots S of rotors and stators are inclined at an angle of about 30‹ to the radial lines, in order to facilitate the fitting of former wound coils therein. The slots may be flat or rounded at the base. Ordinary former-wound coils may be used, or a special coil X, in which the wires of the upper layers fit into the spaces between the wires of the lower layers. According to the Provisional Specification, the slots may have curved sides.
Patent GB-514139-A (GB)
Title: An improved arrangement for cooling exhaust-driven accessories of internal combustion engines
IPC: F02B39/00
Filed: 1938-11-26
Abstract: 514,139. Exhaust-driven turbo-blowers. PORSCHE, F. Nov. 26, 1938, No. 34514. Convention date, Jan. 7. [Class 7 (ii)] The current of.air forced by a fan 3 to pass over the engine cylinders 4 afterwards flows over the surface remote from the nozzles 8 of the rotor 9 of the exhaust-driven turbine 7 which actuates the charging-blower 6. Cooling ribs 13 may project into the air-stream.
Patent GB-506930-A (GB)
Title: Improvements in and relating to bird and small animal cages
IPC: A01K31/06
Filed: 1937-12-13
Abstract: 506,930. Cages for birds &c. CHANGE WARES, Ltd., and STONHAM, D. J. Dec. 13, 1937, No. 34515. [Class 5 (ii)] The bell cap 17 is secured to the apex or crown 6 of a cage for birds or small animals by a rivet 19 that is passed through'the bell and crown and through a locking-washer 22 having one or two spring tongues 23. The rivet is made to. embrace a ring 18 for suspending the cage, and carries a ring for supporting a perch 29.
Patent GB-1276797-A (GB)
Title: Internal combustion engine fuel injection systems
IPC: F02M57/02
Filed: 1970-07-16
Abstract: 1276797 Fuel injection pumps GENERAL MOTORS CORP 16 July 1970 [28 July 1969] 34516/70 Heading F1A The delivery of a fuel injection pump is controlled by the co-operation between spill ports 25, 26 and upper and lower edges of a groove 9 in the pump plunger 10, which edges are of two ports 42, 43 and 44, 45 of differing inclination, the plunger being rotatable by a rack 2 movable by an engine speed responsive governor 6 operative only when the maximum fall load speed is exceeded. Thus up to maximum full load speed, the pre-loading of a spring 36 is effective to prevent bob-weights 34 from axially moving a shaft 5, connected by a lever 3 to the rack 2. Above the said speed the spring 36 compresses and moves the rack to the right to decrease the delivery. Initially the delivery is set by manual counterclockwise movement of the lever 3 about a pivot 4 to increase delivery. The ports 25, 26 communicate with an annular fuel chamber 19 having an inlet connection 23.
Patent GB-521924-A (GB)
Title: Improvements in platform elevators
IPC: B64F5/00
Filed: 1938-11-28
Abstract: 521,924. Guided - platform load handling machines. MERON, F. Nov. 28, 1938, No. 34617. Convention date, Nov. 29, 1937. [Class 78 (iii)] A guided-platform load-handling machine is fitted with additional means for engaging loads and supporting them in vertically, longitudinally or laterally adjustable positions. As illustrated, the pairs of channel-irons 16, 17, which form a skeleton platform, are raised and lowered on the screws 5 either by the motor 10 or the load-crank 9. These channel-irons project at each end of the frame and can be moved longitudinally so that they can be run out to the proximity of a load to be handled. Four uprights 19, fitted with rollers running in the channel-irons so that they can be pushed therealong by hand or power and locked in position by members 20, are furnished with pulley-tackle 22 whereby a pair of load-supporting bands 23, 24 can be manipulated. By manipulating these pulleys all together, in pairs or singly, the end can be raised, tilted or twisted to any desired position. A platform 28 can be moved longitudinally in the frame to enable workmen to operate on the suspended load. A lower platform 29 is fitted with ramps 30 at the ends. The main structure is fitted with steadying jacks 15 at the corners and is mounted on wheels 11 driven from the motor 10. The apparatus is stated to be applicable specially to the removal of parts such as the engines from aeroplanes.
Patent GB-365248-A (GB)
Title: Improvements relating to lehrs, annealing furnaces or like apparatus
IPC: C03B25/06
Filed: 1930-11-18
Abstract: 365,248. Endless belt conveyers. CANNING TOWN GLASS WORKS, Ltd., Stephenson Street, Canning Town, London, and PARNABY, J. J., 61, Woodcote Road, Wanstead, Essex. Nov. 18, 1930, No. 34723. [Class 78 (i).] Conveyer mechanism for leers, annealing furnaces, or the like, comprises a plurality of separate endless conveyers 5, 9 which are arranged end to end and constitute driving members for an enveloping ware-supporting endless band 19 of wire mesh or lattice. The first drive section comprises fixed and adjustable sprockets 6, 7 over which pass transversely spaced chains 5, while the succeeding sections 9 are similarly formed of spaced chains 10 passing over driven and idle sprockets 11, 12, the shafts 13 carrying the driven sprockets 11 being extended through the side wall of the furnace and connected together for simultaneous operation. Each of the sections 9 is provided with a spring or gravity operated tensioning roller 23 and an adjustable roller 22 is also fitted for tensioning the lattice 19.
Patent GB-801660-A (GB)
Title: Improvements in or relating to temperature indicating devices
Inventor: THURLBY LESLIE THORPE
IPC: G08B17/06
Filed: 1953-12-14
Abstract: 801,660. Automatic electric temperature alarms. GRAVINER MANUFACTURING CO., Ltd., and WILKINSON SWORD, Ltd. Dec. 13, 1954 [Dec. 14, 1953], No. 34726/53. Class 118 (1). A temperature alarm device comprises temperature-responsive means providing distinctive responses at different temperatures and a single warning lamp adapted to be unlit below a predetermined temperature, to give a first signal when this temperature is exceeded and a different signal when a second and higher temperature is reached. In Fig. 2 a cable comprising a pair of conductors spaced apart by a material the insulation of which breaks down as the temperature rises (as described in Specifications 715,317, 740,884, [Group XXXVI], and the Provisional Specification 800,550, [Group XXXVI], is connected in series with the bridge rectifier W, the output of which feeds parallelconnected relays A/2, B/1. When the temperature exceeds a preset value relay A/2 is energized through normally closed contacts B1 of relay B/1 to complete the energizing circuit of warning lamp L and of relay B/1 which because of resistor r2 remains inoperative until a predetermined higher temperature is reached when it operates to open circuit relay A/2 the release of which in turn open circuits B/1. While the higher temperature is maintained the relays continue to operate alternately causing flashing of lamp L at a rate determined by the time constants of the relay circuits set by capacitors C. The relay circuits may alternatively be supplied from separate rectifier circuits each incorporating its own cable, while in another arrangement the parallel-connected relay circuits are in series with a D.C. source and a single cable, the mode of operation being essentialiy as before. A circuit using pairs of contacts which close at different predetermined temperatures is also described (Fig. 4). In the Fig. 5 arrangement, described only in the Provisional Specification, operation is the same as in Fig. 1 up to B the temperature at which relay - operates. 2 Contacts B1 shunting resistor r3 then open and contacts B2 close to complete a holding circuit for the relay so that no flashing occurs. The value of r3 is such that when the temperature A B falls - releases before - at a temperature be- 2 2 tween the operating temperatures of the relays, B relay - being designed to release only when the 2 temperature has fallen below that at which A/2 normally operates so preventing its reoperation on release of B/2.
Patent GB-1092402-A (GB)
Title: Ignition system for gas or oil burners
Inventor: TEZUKA SHIGERU
IPC: F23Q2/28
Filed: 1965-08-13
Abstract: 1,092,402. Piezo electric generators. RION KABUSHIKI KAISHA. Aug. 13, 1965 [Aug. 28, 1964 (2)], No. 34765/65. Heading H2A. [Also in Division F4] An ignition system for a gas burner (as shown), or oil burner, comprises piezo - electric elements 15 arranged in a easing 1 and a hammer 8 supported from the casing by two coiled springs 10 in one of two stable positions. When an operating rod 11 is depressed a hook 12<SP>1</SP> contacting a pin 9 on the hammer causes the hammer to pass through an unstable position before it strikes the piezo -electric element. A return spring 14 resets the rod 11. When the rod is depressed, a lever 7 opens a valve 6 allowing gas to flow to a burner nozzle 3. The positive terminals of the elements 15 are connected to a lead 17 and a spark gap provided between the lead and an electrode 21. An earth return is provided by the casing 1. In the embodiment of Fig. 3 (not shown), the operating rod 11 has a hook 25 which engages the upper and lower faces 27 and 27<SP>1</SP> of a hollow 24 formed in the upper end of the hammer. In the embodiment of Fig. 4 (not shown), the hammer is supported directly from the operating rod 11 by a single spring 10 and moves down as the rod 11 is raised. In the embodiment of Fig. 6 (not shown), the wound springs are replaced by curved leaf springs 31 and 31<SP>1</SP> and the control rod 11 is coupled to a valve 36 for controlling the gas supply to the burner.
Patent GB-878166-A (GB)
Title: Improvements in photographic or cinematographic cameras having exposure control arrangements
Inventor: HAHN ERICH
IPC: G03B7/12
Filed: 1959-10-14
Abstract: 878,166. Photo-electric exposure control. KAMERA-UND KINOWERKE DRESDEN VEB Oct. 14, 1959, No. 34815/59. Class 40(3) In a camera having photo-electric exposure control a setting handle, when moved to an "automatic" position, operates a switch in the photo-electric circuit. A camera diaphragm is controlled through an arm 8 by a pin 5 attached to a moving coil mechanism 4. For manual settings an index 16 is placed on the appropriate mark on the scale 17. A member 9 drives a pin 6 to set the correct aperture. For automatic setting, index 16 is placed on the mark "A". A lug 20 then disengages from the rail 18 and a spring 12 lifts the handle 10 so that lug 20 engages a stop 19, member 9 simultaneously meeting a contact 21 to complete the photoelectric circuit. Resistances 23, 24, 25 are selectively connected in parallel with the photo-cell 22 to allow for exposure time or frame speed. The switch may be in parallel with the photo-cell and opened in the automatic position.